Ejemplo n.º 1
0
VideoFrame VideoDecoderFFmpegHW::copyToFrame(const VideoFormat& fmt, int surface_h, quint8 *src[], int pitch[], bool swapUV)
{
    DPTR_D(VideoDecoderFFmpegHW);
    Q_ASSERT_X(src[0] && pitch[0] > 0, "VideoDecoderFFmpegHW::copyToFrame", "src[0] and pitch[0] must be set");
    const int nb_planes = fmt.planeCount();
    const int chroma_pitch = nb_planes > 1 ? fmt.bytesPerLine(pitch[0], 1) : 0;
    const int chroma_h = fmt.chromaHeight(surface_h);
    int h[] = { surface_h, 0, 0};
    for (int i = 1; i < nb_planes; ++i) {
        h[i] = chroma_h;
        // set chroma address and pitch if not set
        if (pitch[i] <= 0)
            pitch[i] = chroma_pitch;
        if (!src[i])
            src[i] = src[i-1] + pitch[i-1]*h[i-1];
    }
    if (swapUV) {
        std::swap(src[1], src[2]);
        std::swap(pitch[1], pitch[2]);
    }
    VideoFrame frame;
    if (copyMode() == VideoDecoderFFmpegHW::OptimizedCopy && d.gpu_mem.isReady()) {
        int yuv_size = 0;
        for (int i = 0; i < nb_planes; ++i) {
            yuv_size += pitch[i]*h[i];
        }
        // additional 15 bytes to ensure 16 bytes aligned
        QByteArray buf(15 + yuv_size, 0);
        const int offset_16 = (16 - ((uintptr_t)buf.data() & 0x0f)) & 0x0f;
        // plane 1, 2... is aligned?
        uchar* plane_ptr = (uchar*)buf.data() + offset_16;
        QVector<uchar*> dst(nb_planes, 0);
        for (int i = 0; i < nb_planes; ++i) {
            dst[i] = plane_ptr;
            // TODO: add VideoFormat::planeWidth/Height() ?
            // pitch instead of surface_width
            plane_ptr += pitch[i] * h[i];
            d.gpu_mem.copyFrame(src[i], dst[i], pitch[i], h[i], pitch[i]);
        }
        frame = VideoFrame(buf, width(), height(), fmt);
        frame.setBits(dst);
        frame.setBytesPerLine(pitch);
    } else {
        frame = VideoFrame(width(), height(), fmt);
        frame.setBits(src);
        frame.setBytesPerLine(pitch);
        // TODO: why clone is faster()?
        // TODO: buffer pool and create VideoFrame when needed to avoid copy? also for other va
        frame = frame.clone();
    }
    frame.setTimestamp(double(d.frame->pkt_pts)/1000.0);
    frame.setDisplayAspectRatio(d.getDAR(d.frame));
    d.updateColorDetails(&frame);
    return frame;
}
Ejemplo n.º 2
0
VideoFrame VideoFrame::to(const VideoFormat &fmt, const QSize& dstSize, const QRectF& roi) const
{
    if (!isValid() || !constBits(0)) {// hw surface. map to host. only supports rgb packed formats now
        Q_D(const VideoFrame);
        const QVariant v = d->metadata.value(QStringLiteral("surface_interop"));
        if (!v.isValid())
            return VideoFrame();
        VideoSurfaceInteropPtr si = v.value<VideoSurfaceInteropPtr>();
        if (!si)
            return VideoFrame();
        VideoFrame f;
        f.setDisplayAspectRatio(displayAspectRatio());
        f.setTimestamp(timestamp());
        if (si->map(HostMemorySurface, fmt, &f)) {
            if ((!dstSize.isValid() ||dstSize == QSize(width(), height())) && (!roi.isValid() || roi == QRectF(0, 0, width(), height()))) //roi is not supported now
                return f;
            return f.to(fmt, dstSize, roi);
        }
        return VideoFrame();
    }
    const int w = dstSize.width() > 0 ? dstSize.width() : width();
    const int h = dstSize.height() > 0 ? dstSize.height() : height();
    if (fmt.pixelFormatFFmpeg() == pixelFormatFFmpeg()
            && w == width() && h == height()
            // TODO: roi check.
            )
        return *this;
    Q_D(const VideoFrame);
    ImageConverterSWS conv;
    conv.setInFormat(pixelFormatFFmpeg());
    conv.setOutFormat(fmt.pixelFormatFFmpeg());
    conv.setInSize(width(), height());
    conv.setOutSize(w, h);
    conv.setInRange(colorRange());
    if (!conv.convert(d->planes.constData(), d->line_sizes.constData())) {
        qWarning() << "VideoFrame::to error: " << format() << "=>" << fmt;
        return VideoFrame();
    }
    VideoFrame f(w, h, fmt, conv.outData());
    f.setBits(conv.outPlanes());
    f.setBytesPerLine(conv.outLineSizes());
    if (fmt.isRGB()) {
        f.setColorSpace(fmt.isPlanar() ? ColorSpace_GBR : ColorSpace_RGB);
    } else {
        f.setColorSpace(ColorSpace_Unknown);
    }
    // TODO: color range
    f.setTimestamp(timestamp());
    f.setDisplayAspectRatio(displayAspectRatio());
    f.d_ptr->metadata = d->metadata; // need metadata?
    return f;
}